The Zirra Authorization Node.js Sample Code suggests to replace your-zirra-api-key with your real API key. Full code will be available soon to interact with the API. For additional information, visit https://www.zirra.com/contact-us
One of the many frustrations that mashup developers (and web developers in general) run into is trying to use contextual ads for sites with lots of dynamic content. By their very nature, mashups typically tap into data that constantly changes, making it difficult to use contextual ads that stay up-to-date with content.
There are so many jobs listed for developers familiar with the Paypal API on GetAFreelancer that the site has a category dedicated to it. And that's not all--there are over 300 API-related listings on the site, which connects freelancers with people who need programmers and designers.